Stove



, Miren ,Starts Arnault Orme-n.

CHARLES A. IIAMLIN, OF GREENBUSH, ASSIGNOR TO THE RANSOM STOVE COMPANY, OF ALBANY, NEWF YORK. Y

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SPECIFICATION forming -part of Leiters Patent No. 292,8C5, dated February5, H84.

Application man May 1, 1883. (No mmhi.)

To all whom it may concern:

Be it known that I, CHARLES A. HAMLIN, y

of Greenbush, in the county of Rensselaer and State of New York, have invented certain new and useful Improvements in Stoves for Burning Bituminous Coal, of which the following is a specification.`

My invention relates to improvements ou imperforate lire-bed, as shown and described in my aforesaid Letters Patent', instead of being beneficial to the eective operation of the stove, is, on the contrary, highly detrimental thereto, for the following reasons: First, the air that enters through the said opening intensifies the combustion at that point and rapidly consumes the coke that lies in close proximity to said opening, `thereby quickly converting the coke into fine ashes, that readily escape through the said air-opening and leave an unobstructed passage for the admission of 3o cold air into the flame-chamber, in which the cold air will chill the unconsumed gases that enter from the retorting-chamber and convert said gases. into a dense black smoke, and in this manner defeat the object for which the said air-openingwas designed; and, second, the aforesaid'rapid combustion ofthe coke at the forward part of the ire-bed produces a corresponding retardation of the combustion at the rear of the retorting-chamber, adjacent 4o to the ingress draft-opening. By my present improvement these defects are remedied, for

the reason that all the air that is admitted into the retorting-chamber is compelled tov enter to Y the burning coke through the rear of said re- 4 5 torting-chamber, and as it passes through the -rear grate the air becomes highly heated and mingles with the distilled gases that are at the same temperature. rI-he r4commingled air and gases escape into the flame-chamber in the 5o form of an intensely-heated flame. v

To accomplish this end my invention consists in `combining with an imperforate fire- 4bed, that is specially constructed to prevent wall between'the retorting-chamber and iiamechamber, whose lower edge is disconnected from the fire-bed, to form at a point opposite the rear grate an egress draft-opening, whereby the draft-currents will be forced -to pass through' the fuel lying upon the imperforate re-bed in a horizontal direction, as hereinafter described.

In the accompanying drawings, which form part of this specification, and to which refer-l ence is made herein, Figure lis a vertical section of a stove containing my present improvements, and Fig. 2 a horizontal section nof the same at the line x m. 7o

As represented in the drawings, A is the body of the stove, which I )referably make in a rectangular form, as shown in Fig. 2. The said' body contains the retorting-chamber B, combustion-chamber G, and flame-chamber D. The retorting-chamber B is located in the rear portion of the body A, and is inclosed by the non-conducting walls b and bridge-wall b', the latter being, from necessity, composed of the best heat-resisting material that I can obtain. The said retorting-chamber is provided with a feeding-door, (indicated by dotted lines in Fig.ll,) through which the bituminous coal is introduced into said chamber. The combustion-chamber C occupies the body of the stove beneath the retorting-cha-mber B and below the line of the under edge of the bridge-wall b. Said combustion-chamber vhas at its back part the rear grate, c, which I preferably fix in an inclined position, and which forms the inlet air-openings for supplying the air required to furnish oxygen for maintaining the combustion of the coke contained in said combustion-chamber. At the bottom of said chamber an imperforate fire-bed, c', is placed, and the said fire-bed differs from the one shown and described in my former patent hereinbefore referred to in this respect: it has no opening for the admission of air, either at its front edge or ends, for producing an ignition of the gases as they escape from the fuel in the retorting-chamber B. rlhe said fire-bed, as shown in the drawings, is hinged at its rear side, so that it may be dropped for the purpose of emptying the fuel from the retorting-chamber. A fastening device, 02, is arranged at the front side of said fire-bed for the purpose of holding it up in place, as shown in the drawings; but I do not confine myself to this particular arrangement, for the reason that any imperforatc lirebed that will exclude the air from entering the combustion-chamber at the front side and ends of said fire-bed will serve the same purpose equally as well. The flame-chamber D is separated from the retorting-chamber B by means of the bridge-wall b. The space below the lower edge of said bridge-wall constitutes the egress draft-opening d, which is located directly opposite to the ingress draft-openings through the rear grate, c. Through the egress draft-opening d the gases that are eliminated from t-he crude fuel in the retorting-chambcr, which gases become colnmingled with the eX- cess of air that has entered into the combustion-chamber through the inlet d raft-openin gs, escapes, in a highly heated condition, into the flame-chamber D, wherein they become ignited and burn with great intensity. The uuconsumed gases from the Haine-chamber D escape through the outlet E, and are carried away therefrom by means of the usual escapepipe. A door, F, at the rear of the body of the stove affords the means for reaching the grate c,1'or the purpose of agitating the fuel, and for removing any debris from the fire-bed c through an opening, of, formed at the base of the grate c. Air for supplying the oxygen required for supporting combustion is admitted into the ash-"pit G through a registered opening, g, in the front door, g@ and after its admission into said ash-pit the air follows the course indicated bythe arrows marked on Fig.

1. A mica door, ll, in the front of the flamechamber D, affords the means for securing a Y pleasant illumination from the burning gases in said dame-chamber. It will be seen that in this improved form of my stove the draftcurrents are at all times forced to pass through the combustion-chamber G in a horizontal direction from the ingress draft-openings to, and out of the egress draft-opening d, as no provision is made for a direct or alternative draft. The heat rising from the combustion-chamber C is sufficient to distill the gases from the bituminous coal contained in the retorting-chaniber B, and to comfort the said coalinto an incrustation of coke, which is continually burned away from its under side by reason of the enforced horizontal draft currents until said coke is reduced to ashes, which are removed from the bot-tom of the combustion-chamber through the opening c. Fresh incrustations of coke are heilig constantly formed by distilling the gases from the coal in the retortingchamber B, to take thc place ofthe coke consumed by the iirc in the combustion-chamber C.

l claim as my inventionrlhe combination, with a retorting-chamber, B, a combustion-ehamber, C, lying directly underneath said retorting-chamber,and a iiame` chamber, D, separated from said retortingchamber by means of the bri dge-wall Z1', whereby the egress draft-opening d is formed, as herein described, of the inclined rear grate, c, fixed under the rctorti11g-chamber B, and the imperforate fire-bed c, arranged to form a close -joint with the combustion-chamber C at the ends and one side of said chamber, as and for the purpose herein specified.

CHARLESA. IIAMLIX. \\`itnesses:

umn-ur Il. Low, t5. B. Biznwnn. 

